<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        /*在p标签前面加东西(图片,文字等等)*/
        p:before{
            content:"asasdasd";
        }
    </style>
    <!--引用外部样式-->
    <link rel="stylesheet" href="my.css">
    <link rel="stylesheet" href="http://at.alicdn.com/t/font_544187_556fkna1ddtsatt9.css">
</head>
<body>
<p class="my">哈哈哈哈</p>
<p>哈哈哈</p>
<i class="iconfont icon-30">awdadawdawdaw</i>
</body>
</html>